Question

By selling 20 pens ,a shopkeer loses equal to the CP of 4 pens . calculate his loss %​

Answer 1

Step-by-step explanation:

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Answer 2

Answer:

Given:

By selling 20 pens, a shopkeeper 's gain is equal to the selling price of 4 pens.

So,

20 ( Selling price -  Cost price ) =  4 Selling price

5 ( Selling price -  Cost price ) =   Selling price

5 Selling price -  5 Cost price   =  Selling price

4 Selling price  =  5 Cost price

Selling price = 5 cost price / 4

So,

Gain  =  Selling price  -  Cost price  = 5 Cost price/4  - Cost price  

= 5 Cost price − 4 Cost price / 4  

= 1/4 Cost price

Gain %  

= 1/4 Cost price / Cost price×100 = 100/4 = 25 %    

ANSWER= 25%

Step-by-step explanation: